package com.ari.dao.user;

import com.ari.dao.BaseDao;
import com.ari.pojo.User;
import com.mysql.jdbc.StringUtils;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

public class UserDaoImpl implements UserDao{
    //得到登录的用户
    public User getLoginUser(Connection connection, String userCode) throws SQLException {
        PreparedStatement pstm = null;
        ResultSet rs = null;
        User user =null;
        if(connection!=null) {
            String sql = "select * from smbms_user where userCode =? ";
            Object[] params = {userCode};
                rs = BaseDao.execute(connection, pstm, rs, sql, params);
                if (rs.next()){
                    user =new User();
                    user.setId(rs.getInt("id"));
                    user.setUserCode(rs.getString("userCode"));
                    user.setUserName(rs.getString("userName"));
                    user.setUserPassword(rs.getString("userPassword"));
                    user.setGender(rs.getInt("gender"));
                    user.setBirthday(rs.getDate("birthday"));
                    user.setPhone(rs.getString("phone"));
                    user.setAddress(rs.getString("address"));
                    user.setUserRole(rs.getInt("userRole"));
                    user.setCreatedBy(rs.getInt("createdBy"));
                    user.setCreationDate(rs.getTimestamp("creationDate"));
                    user.setModifyBy(rs.getInt("modifyBy"));
                    user.setModifyDate(rs.getTimestamp("modifyDate"));
                }
                BaseDao.closeResource(null,pstm,rs);
        }
        return user;
    }
    //修改当前用户密码
    public int updatePwd(Connection connection, int id, String password) throws SQLException {
        PreparedStatement pstm = null;
        int execute = 0;
        if (connection!=null){
            String sql = "update smbms_user set userPassword = ? where id = ?";
            Object params[] = {password,id};
            execute = BaseDao.execute(connection, sql, pstm, params);
            BaseDao.closeResource(null,pstm,null);
        }
        return execute;
    }
    //查询用户总数
    public int getUserCount(Connection connection, String username, int userRole) throws SQLException {
        //根据用户名或者角色查询用户总数
        PreparedStatement pstm = null;
        ResultSet rs = null;
        int count = 0;
        if (connection!=null) {
            StringBuffer sql = new StringBuffer();
            sql.append("select count(1) as count from smbms_user u,smbms_role r where u.userRole = r.id");
            ArrayList<Object> list = new ArrayList<Object>();//存放我们的参数
            if (!StringUtils.isNullOrEmpty(username)) {
                sql.append(" and u.userName like ?");
                list.add("%" + username + "%"); //index:0
            }

            if (userRole > 0) {
                sql.append(" and u.userRole = ?");
                list.add(userRole); //index:1
            }
            //怎么把List转换为数组
            Object[] params = list.toArray();

            System.out.println("UserDaoImpl->getUserCount:" + sql.toString()); //输出最后完整的SQL语句


            rs = BaseDao.execute(connection, pstm, rs, sql.toString(), params);

            if (rs.next()) {
                count = rs.getInt("count"); //从结果集中获取最终的数量
            }
            BaseDao.closeResource(null, pstm, rs);
        }
            return count;
    }

    public List<User> getUserList(Connection connection, String userName, int userRole, int currentPageNo, int pageSize) throws Exception {
        PreparedStatement pstm = null;
        ResultSet rs = null;
        List<User> userList = new ArrayList<User>();
        if (connection != null){
            StringBuffer sql = new StringBuffer();
            sql.append("select u.*,r.roleName as userRoleName from smbms_user u,smbms_role r where u.userRole = r.id");
            List<Object> list = new ArrayList<Object>();
            if(!StringUtils.isNullOrEmpty(userName)){
                sql.append(" and u.userName like ?");
                list.add("%"+userName+"%");
            }
            if(userRole > 0){
                sql.append(" and u.userRole = ?");
                list.add(userRole);
            }
            //在数据库中，分页使用 limit startIndex，pagesize；总数
            //当前页（当前页-1）*页面大小
            //0，  5      1    0       01234
            //5，  5      2    5       26789
            //10， 5      3    10
            sql.append(" order by creationDate DESC limit ?,?");
            currentPageNo = (currentPageNo - 1) * pageSize;
            list.add(currentPageNo);
            list.add(pageSize);

            Object[] params = list.toArray();
            //System.out.println("sql---->" + sql.toString());
            rs = BaseDao.execute(connection, pstm, rs, sql.toString(), params);
            while (rs.next()) {
                User _user = new User();
                _user.setId(rs.getInt("id"));
                _user.setUserCode(rs.getString("userCode"));
                _user.setUserName(rs.getString("userName"));
                _user.setGender(rs.getInt("gender"));
                _user.setBirthday(rs.getDate("birthday"));
                _user.setPhone(rs.getString("phone"));
                _user.setUserRole(rs.getInt("userRole"));
                _user.setUserRoleName(rs.getString("userRoleName"));
                userList.add(_user);
            }
            BaseDao.closeResource(connection,null,null);
        }
        return userList;
    }
}
